Inline Multi Stage Pumps

Grundfos Inline Multi Stage Pumps

Inefficient pumps consume more energy and incur additional expenses. Featuring top-tier efficiency and offering a wide range of flow sizes and working pressures, the CR series of multi-stage centrifugal pumps serve as excellent high-pressure options for customers aiming to reduce operating costs. Their meticulously optimized design guarantees outstanding energy efficiency, resulting in significant savings.

Duty Range

Max flow: 336 m³/h
Head max: 487 m
Liquid temperature: -40 .. 150 °C
p max: 50 bar

Suitable For

Water Treatment Fertigation, Chemigation & Dosing
Controls & Digital Groundwater Management
Drip, Micro Spray & Soaker Hose Irrigation
Rotor & spray irrigation
Livestock & Wildlife Watering
Livestock watering with solar solutions
Pivot & Lateral Irrigation
Agriculture solar solutions
Solar boosting and water supply solutions
Ground water transfer
Commercial air conditioning
Commercial heating
Commercial water pressure boosting
District cooling
District heating
Drinking water treatment
Irrigation
Industrial cooling
Desalination
Industrial heating
Machining
Process liquids transfer
Industrial process water treatment
Industrial cleaning process
Industrial water supply & transfer
Industrial wastewater treatment & reuse
Solar water solutions
Solar Controls & Digital Water Management
Solar Water Treatment Fertigation & Dosing
Surface water intake
Community water supply
Community solar solutions
Municipal solar solutions
Water distribution

Original Products
Warranty Against Defects
Returns & Refunds Policy
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Constructed from cast iron with all wetted components crafted from AISI 304 grade stainless steel, the CR pump is designed for handling non-corrosive liquids. Offering world-class efficiency, with capacities reaching up to 320 m3/h and a working pressure of 40 bar, the CR is an exceptional vertical centrifugal pump suitable for various demanding applications. These include liquid transfer, circulation, and pressure boosting of both cold and hot water, as well as applications in aqua-farming and field irrigation.

Features

Equipped with a balanced cartridge shaft seal.
Utilizes wear-resistant bearing material for enhanced durability.
Incorporates a maintenance-free mechanical shaft seal for hassle-free operation.

Duty Range

Max flow: 336 m³/h
Head max: 362 m
Liquid temperature: -30 .. 150 °C
p max: 40 bar

Constructed entirely from high-grade AISI 316 stainless steel, the CRNE pump represents a high-efficiency in-line multi-stage solution equipped with a built-in variable-speed drive, ideal for industrial liquid applications. It's specifically engineered for systems requiring all components in contact with the liquid to be made of high-grade stainless steel. In industries where handling dangerous and aggressive liquids is a routine part of production, safety is paramount. CRNE pumps are designed to meet these stringent requirements, capable of pumping aggressive, abrasive, toxic, hazardous, and odorous liquids.

Features

Utilizing high-grade stainless steel for all wetted components.
Capable of automatically adapting to system requirements.
Equipped with a balanced cartridge shaft seal for enhanced performance and reliability.

Duty Range

Max flow: 147 m³/h
Head max: 252 m
Liquid temperature: -40 .. 120 °C
p max: 30 bar

Performance Curve

Technical Data

Single-phase 1 x 200-240 V

P2 [kW]	Frame Size	D1	D2	B2	Change in Weight (kg)	I1/1 [A]	Cos φ	n[%]
0.37	71	-19	18	23	-1	1.90-2.30	0.98	86.3
0.55	71	-19	18	23	-1	2.80-3.30	0.99	86.7
0.75	80	-19	18	-17	-1	3.80-4.50	0.99	85.8
1.1	80	-19	18	-17	-1	5.40-6.50	0.99	87.2
1.5	90	122	158	234	-	7.30-8.70	1	87.6

Three-phase 3 x 380-500 V

P2 [kW]	Frame Size	D1	D2	B2	Change in Weight (kg)	I1/1 [A]	Cos φ	n[%]
0.37	71	122	158	254	-	0.70-0.80	0.73-0.85	88.2
0.55	71	122	158	254	-	1.00-1.10	0.76-0.87	88.5
0.75	80	-56	-9	-27	-9.3	1.30-1.50	0.79-0.89	87.7
1.1	80	-56	-9	-27	-9.3	1.80-2.10	0.82-0.91	89.5
1.5	90	-56	-9	-27	-7.3	2.30-2.80	0.85-0.92	90.0
2.2	90	-56	-9	-47	-11.3	3.30-4.00	0.88-0.93	90.7

The CRIE pump stands as an in-line, multi-stage solution equipped with a built-in variable speed drive, offering a diverse range of flow and pressure sizes. Constructed from AISI 304 grade stainless steel, the CRIE is well-suited for applications involving non-corrosive liquids. With the option of an integrated or external frequency converter and an optional IE5 motor, the CRIE is particularly advantageous when demanding top-notch performance, precise control, and exceptional energy efficiency. It is ideal for tasks such as liquid transfer, circulation, and pressure boosting of both cold and hot water.

Features

Utilizing high-grade stainless steel for all wetted components.
Capable of automatically adapting to system requirements.
Equipped with a balanced cartridge shaft seal for enhanced performance and reliability.

Duty Range

Max flow: 35 m³/h
Head max: 252 m
Liquid temperature: -20 .. 120 °C
p max: 25 bar

Performance Curve

Technical Data

Single-phase 1 x 200-240 V

P2 [kW]	Frame Size	D1	D2	B2	Change in Weight (kg)	I1/1 [A]	Cos φ	n[%]
0.37	71	-19	18	23	-1	1.90-2.30	0.98	86.3
0.55	71	-19	18	23	-1	2.80-3.30	0.99	86.7
0.75	80	-19	18	-17	-1	3.80-4.50	0.99	85.8
1.1	80	-19	18	-17	-1	5.40-6.50	0.99	87.2
1.5	90	122	158	234	-	7.30-8.70	1	87.6

Three-phase 3 x 380-500 V

P2 [kW]	Frame Size	D1	D2	B2	Change in Weight (kg)	I1/1 [A]	Cos φ	n[%]
0.37	71	122	158	254	-	0.70-0.80	0.73-0.85	88.2
0.55	71	122	158	254	-	1.00-1.10	0.76-0.87	88.5
0.75	80	-56	-9	-27	-9.3	1.30-1.50	0.79-0.89	87.7
1.1	80	-56	-9	-27	-9.3	1.80-2.10	0.82-0.91	89.5
1.5	90	-56	-9	-27	-7.3	2.30-2.80	0.85-0.92	90.0
2.2	90	-56	-9	-47	-11.3	3.30-4.00	0.88-0.93	90.7

The CRN pump is an in-line, multi-stage pump that offers a diverse range of flow and pressure sizes. Constructed from high-grade AISI 316 stainless steel, the CRN pump is well-suited for a wide array of applications including ultra-filtration, reverse osmosis, cooling lubricants in machine tools, distillation systems, swimming pools, handling oils, alcohols, acids, alkalis, and various process-water systems. It is particularly adept at managing problematic liquids across different processes.

Features

Wetted components crafted from high-grade stainless steel
Equipped with a balanced cartridge shaft seal
Utilizes wear-resistant bearing material

Duty Range

Max flow: 335 m³/h
Head max: 406 m
Liquid temperature: -40 .. 150 °C
p max: 50 bar

Performance Curve

Technical Data

Single-phase 1 x 200-240 V

P2 [kW]	Frame Size	D1	D2	B2	Change in Weight (kg)	I1/1 [A]	Cos φ	n[%]
0.37	71	-19	18	23	-1	1.90-2.30	0.98	86.3
0.55	71	-19	18	23	-1	2.80-3.30	0.99	86.7
0.75	80	-19	18	-17	-1	3.80-4.50	0.99	85.8
1.1	80	-19	18	-17	-1	5.40-6.50	0.99	87.2
1.5	90	122	158	234	-	7.30-8.70	1	87.6

Three-phase 3 x 380-500 V

P2 [kW]	Frame Size	D1	D2	B2	Change in Weight (kg)	I1/1 [A]	Cos φ	n[%]
0.37	71	122	158	254	-	0.70-0.80	0.73-0.85	88.2
0.55	71	122	158	254	-	1.00-1.10	0.76-0.87	88.5
0.75	80	-56	-9	-27	-9.3	1.30-1.50	0.79-0.89	87.7
1.1	80	-56	-9	-27	-9.3	1.80-2.10	0.82-0.91	89.5
1.5	90	-56	-9	-27	-7.3	2.30-2.80	0.85-0.92	90.0
2.2	90	-56	-9	-47	-11.3	3.30-4.00	0.88-0.93	90.7

The single-pump CRNE-HS and two-pump CRN-SF configurations represent in-line, multi-stage pump systems engineered to endure the harsh conditions of high-pressure applications. Constructed from AISI 316 grade stainless steel, they excel in various applications including washing systems, water treatment systems, industrial plants, boiler feeding systems, filtration, and reverse osmosis.

Duty Range

Max flow: 87 m³/h
Head max: 487 m
Liquid temperature: -30 .. 120 °C

Model

CRNE 10-17
CRNE 3-25
CRNE 3-23
CRNE 3-23
CRNE 1-23
CRN 64-7
CRN 45-12
CRN 20-16
CRN 20-16
CRN 15-16
CRN 15-16
CRN 10-21
CRN 10-21
CRN 5-34
CRN 5-34
CRN 3-31

The CRE is a versatile in-line multi-stage pump featuring a built-in variable-speed drive, offering a diverse range of flow and pressure sizes. It is constructed from either AISI 304 grade stainless steel or cast iron. The variable-speed drive dynamically adjusts pump performance to align with current conditions and desired pressure, temperature, or flow rates. This versatility renders the CRE suitable for a wide array of applications, including water supply, washing and cleaning, water treatment, boiler feed, chemical industries, temperature control, and mining.

Features

Utilizing high-grade stainless steel for all wetted components.
Capable of automatically adapting to system requirements.
Equipped with a balanced cartridge shaft seal for enhanced performance and reliability.

Duty Range

Max flow: 147 m³/h
Head max: 254 m
Liquid temperature: -30 .. 120 °C
p max: 30 bar

Performance Curve

Technical Data

Single-phase 1 x 200-240 V

P2 [kW]	Frame Size	D1	D2	B2	Change in Weight (kg)	I1/1 [A]	Cos φ	n[%]
0.37	71	-19	18	23	-1	1.90-2.30	0.98	86.3
0.55	71	-19	18	23	-1	2.80-3.30	0.99	86.7
0.75	80	-19	18	-17	-1	3.80-4.50	0.99	85.8
1.1	80	-19	18	-17	-1	5.40-6.50	0.99	87.2
1.5	90	122	158	234	-	7.30-8.70	1	87.6

Three-phase 3 x 380-500 V

P2 [kW]	Frame Size	D1	D2	B2	Change in Weight (kg)	I1/1 [A]	Cos φ	n[%]
0.37	71	122	158	254	-	0.70-0.80	0.73-0.85	88.2
0.55	71	122	158	254	-	1.00-1.10	0.76-0.87	88.5
0.75	80	-56	-9	-27	-9.3	1.30-1.50	0.79-0.89	87.7
1.1	80	-56	-9	-27	-9.3	1.80-2.10	0.82-0.91	89.5
1.5	90	-56	-9	-27	-7.3	2.30-2.80	0.85-0.92	90.0
2.2	90	-56	-9	-47	-11.3	3.30-4.00	0.88-0.93	90.7

The Grundfos CRI pump is a versatile in-line, multi-stage pump offering a diverse range of flow and pressure sizes. Constructed from AISI 304 grade stainless steel, the CRI pump is perfectly suited for water and other non-corrosive liquids. It is ideal for tasks such as liquid transfer, glycol applications, circulation systems, and pressure boosting of both cold and hot water, as well as mildly aggressive liquids.

Duty Range

Max flow: 30 m³/h
Head max: 252 m
Liquid temperature: -20 .. 120 °C
p max: 25 bar

Technical Data

Pump	Suction depth HD [m]	Flow rate [m3/h]	Ejector no.	Pressure class, plastic pipe [kp/cm²]	Pipe dimension [mm]		Largest ejector diameter [mm]
Pump	Suction depth HD [m]	Flow rate [m3/h]	Ejector no.	Pressure class, plastic pipe [kp/cm²]	Ejector inlet: External/internal	Ejector outlet: External/internal	Largest ejector diameter [mm]
CR(I) 5-9	54	0.25	11B	6+6	32/26	40/32.6	76
	42	0.68	29B	6+6	32/26	40/32.6	76
	35	0.92	20B	6+6	32/26	40/32.6	76
	27	1.25	22B	6+6	32/26	40/32.6	76
CR(I) 5-11	65	0.25	11B	10+10	32/22.8	40/28.4	80
	50	0.62	29B	10+6	32/22.8	40/32.6	76
	45	0.85	20B	6+6	32/26	40/32.6	76
	40	1.10	22B	6+6	32/26	40/32.6	76
	35	1.37	44B	6+6	32/26	40/32.6	76
	28	1.75	45B	6+6	32/26	40/32.6	76
CR(I) 5-13	79	0.25	11B	10+10	32/22.8	40/28.4	80
	63	0.62	29B	10+10	32/22.8	40/28.4	80
	54	0.87	20B	10+6	32/22.8	40/32.6	76
	45	1.17	22B	10+6	32/22.8	40/32.6	76
	40	1.39	44B	6+6	32/26	40/32.6	76
	33	1.99	45B	6+6	32/26	40/32.6	76
CR(I) 5-15	93	0.25	11B	10+10	32/22.8	40/28.4	80
	73	0.63	29B	10+10	32/22.8	40/28.4	80
	62	0.88	20B	10+10	32/22.8	40/28.4	80
	53	1.14	22B	10+6	32/22.8	40/32.6	76
	46	1.40	44B	10+6	32/22.8	40/32.6	76
	37	1.99	45B	10+6	32/22.8	40/32.6	76